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Mudder · 12-27-2005, 10:33 AM

I had the 3.08's like you and went to 3.73's (Running 35's) because with 3.73"s you can just change ring and pinion. If you want 4.10's you will have to change carrier. Mine is a lot better with the 4.10's. Going down the interstate at 70, I'm running around 26-2800 rpm's. I like the 4.10's the best from my 35's. You will tell a big difference going from the 3.08's to the 3.73's if thats the way you go.

We have calculator's over at myoldtruck.com to figure your rpm's.

http://www.myoldtruck.com/calculator...alculator.html

12-27-2005, 10:33 AM	#8
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,336	Re: what gears to use I had the 3.08's like you and went to 3.73's (Running 35's) because with 3.73"s you can just change ring and pinion. If you want 4.10's you will have to change carrier. Mine is a lot better with the 4.10's. Going down the interstate at 70, I'm running around 26-2800 rpm's. I like the 4.10's the best from my 35's. You will tell a big difference going from the 3.08's to the 3.73's if thats the way you go. We have calculator's over at myoldtruck.com to figure your rpm's. http://www.myoldtruck.com/calculator...alculator.html Last edited by Mudder; 12-27-2005 at 10:39 AM.